Sq Ldr Kimlicka first joined the Czech air force and fought against the German's before his home country fell in 1938.

He eventually escaped to France where he enlisted with their air force and flew against the Luftwaffe during the Nazi Blitzkrieg in June 1940.

When France fell to Hitler, he made it across the Channel and joined the RAF.

Despite his flying experience, Sq Ldr Kimlicka was placed in a training wing of 310 Squadron where he remained for the rest of the Battle of Britain.

Although 310 was a Battle of Britain squadron, only the three operational 'wings' were recognised on the official roll, and not training section.

Sq Ldr Kimlicka's logbook, signed and verified by his commanding officer at the time, makes it clear that he was operational.

Bernard Pass, of Bosley's auctioneers which is selling the logbook and medals, said: "The log states he went operational on the October 16, 1940.

"He was on a training operation when they were diverted to attack an enemy formation and his log states 'operational'.

"He flew in four operations before the end of the Battle of Britain.

"However, he appears to have still been attached to 310 Squadron training flight and through an administration error, does not appear on the Battle of Britain Aircrew Roll.

"It looks like he should have been properly recognised and awarded the Battle of Britain Clasp to the 1939-1945 Star.

"These men were - and still are - considered heros for helping to save the nation from a German invasion.

"It appears this man did his bit at that time and yet has never been given the credit or the prestige associated with being one of The Few.

"He is still unconfirmed today and it is up to his family to contact the MoD and try and get his name on the roll."

Sq Ldr Kimlicka remained in the RAF and provided air support cover to Allied soldiers during the disastrous raid at Dieppe in August 1942.

He also attacked numerous German bombers and fighter planes while on escort missions across the English Channel.

In one entry in his logbook, dated March 27, 1941 he described how he failed to shoot down a Junkers 88 bomber, writing: "Missed the bugger."

When he left the RAF, Sq Ldr Kimlicka became a salesman and raised a family on the south coast.

Andy Saunders, a military historian, said: "It would seem likely that, at least in some way or another, he participated in the Battle of Britain, albeit not officially.

"The MoD and the Battle of Britain Fighter Association are very careful about who was and who was not one of The Few.

"It is very unusual for a new entry to emerge after so long but on the face of the evidence it looks as though he should be added to it."

Out of nearly 3,000 men on the official Battle of Britain roll, 574 were non-British, with 88 coming from Czechoslovakia.

Sq Ldr Kimlicka's medal group being sold includes the Czechoslovakia War Cross, Czechoslovakia Medal for Gallantry, 1939/45 Star, Aircrew Europe Star, War Medal, the French Croix de Guerre with Palm leaf.

The collection is expected to sell for £3,000 at the auction in Marlow, Bucks, on June 6.